The worlds first card reader for cfast 20 memory cards the sandisk extreme pro cfast 20 readerwriter supports the speeds that professional photographers and videographers need to quickly download high resolution photos and full hd videos a usb 30 interface supports transfer speeds of up to 500mbs to make your post production workflow more efficient up to 10 times faster than usb 20 interface compact and portable this card reader travels easily from the studio to the field and is back